fix OpenCommandPrompt implementation: works now if target path is on a drive different from the current working directory
fix SD-1920 - NumericUpDown does not work properly when typing a number

The value should be validated and saved when the control loses the focus.
Update to NuGet 2.5
Add file conflict dialog.
Use WPF for file conflict dialog.

MessageService.ShowCustomDialog() does not set focus
to the accept button.
Extract common code from the NuGet addin dialogs.
Fix exception when there is a file conflict installing jQuery.

Always use UI thread when opening FileConflictResolver dialog
when running PowerShell scripts.
Support NuGet packages containing MSBuild targets and props files.

MSBuild props files are added to the top of the project whilst
targets files are added to the end.
Add Update All button to Manage Packages dialog.
Update .nuspec for AvalonEdit 4.3.1 release.
Implemented SD-1853 - AvalonEdit: Distinguish between 'end of line' and 'start of next line' at word wrap positions

Also, the Home/End keys now apply to the current TextLine, not the whole VisualLine.
Fix TextView.GetVisualPosition() for positions with IsAtEndOfLine=true
Remove incorrect tooltip
Fixed caret navigation around characters outside the Basic Multilingual Plane (characters represented using surrogate pairs).
Compare IsAtEndOfLine in TextViewPosition.Equals
Fix handling of empty segments in TextSegmentReadOnlySectionProvider
Support updating all NuGet packages in solution from dialog
Refactor UpdatedPackagesViewModel.
Fix updated packages not being shown in dialog.

Updated packages were not being displayed in the
Manage Packages dialog when the solution was selected
and two or more projects had the same NuGet packages but
different versions.

http://nuget.codeplex.com/workitem/3034
Fix packages.config not being added to project.

NuGet's PhysicalFileSystem now has two AddFile methods
and both of these need to be overridden.
Clear dialog error messages when updating all NuGet packages.